Unfortunately every seedbank seems to be a mixed bag (pun intended). I got RP's Headband and it was legit, yielded close to Barney's LSD and was great smoke. Cali Connection's 818 I don't think I had a chance to crop but the mother was hearty as hell. RP's Skywalker sucks for yield and their Sour D is just alright but probably not Sour. I've yet to have any issue with DNA though, their Lemon OG, Purple LA, Training Day all made me happy and were worth the investment!
Honestly in the future I'll probably by 1-2 beans from names that aren't so huge and see how I make out. My advice would be to stock what you love and keep them someplace cool/dry until you need them- they'll probably pop after 5 years I bet.